Full distribution of clusters with universal couplings and in-medium effects

Abstract

Light and heavy clusters are calculated for asymmetric warm nuclear matter in a relativistic mean-field approach. In-medium effects, introduced via a universal cluster-meson coupling, and a binding energy shift contribution, calculated in a Thomas-Fermi approximation, were taken into account. This work considers, besides the standard lightest bound clusters ${}^4$He, ${}^3$He, ${}^3$H, and ${}^2$H, also stable and unstable clusters with higher number of nucleons, in the range $5\le A\le 12$, as it is natural that heavier clusters also form in core-collapse supernova matter, before the pasta phases set in. We show that these extra degrees of freedom contribute with non-negligible mass fractions to the composition of nuclear matter, and may prevail over deuterons and $\alpha$ particles at high density in strongly asymmetric matter, and not too high temperatures. The presence of the light clusters reduces the contribution of heavy clusters to a much smaller density range, and to a smaller mass fraction.

arXiv comment17 pages, 14 figures, accepted for publication in PRC

References in corpus (38)

• GW170814: A Three-Detector Observation of Gravitational Waves from a Binary Black Hole Coalescence
• Equations of state for supernovae and compact stars
• Composition and thermodynamics of nuclear matter with light clusters
• Relativistic Equation of State of Nuclear Matter for Supernova and Neutron Star
• Neutron-Rich Nuclei in Heaven and Earth
• Statistical Model for a Complete Supernova Equation of State
• Relativistic Equation of State of Nuclear Matter for Supernova Explosion
• Cluster Formation and The Virial Equation of State of Low-Density Nuclear Matter
• Nuclear pasta structures and the charge screening effect
• Dynamical response of the nuclear pasta in neutron star crusts
• A New Equation of State for Astrophysical Simulations
• Simulation of Transitions between "Pasta" Phases in Dense Matter
• Equation of state and thickness of the inner crust of neutron stars
• A New Open-Source Nuclear Equation of State Framework based on the Liquid-Drop Model with Skyrme Interaction
• Influence of light nuclei on neutrino-driven supernova outflows
• Laboratory Tests of Low Density Astrophysical Equations of State
• The Virial Equation of State of Low-Density Neutron Matter
• A new baryonic equation of state at sub-nuclear densities for core-collapse simulations
• Statistical approach for supernova matter
• Warm pasta phase in the Thomas-Fermi approximation
• Parametrization of light nuclei quasiparticle energy shifts and composition of warm and dense nuclear matter
• Statistical description of complex nuclear phases in supernovae and proto-neutron stars
• Nuclear Waffles
• A comparative study of statistical models for nuclear equation of state of stellar matter
• Supernova equations of state including full nuclear ensemble with in-medium effects
• Light clusters, pasta phases and phase transitions in core-collapse supernova matter
• Constraining supernova equations of state with equilibrium constants from heavy-ion collisions
• Equation of State of Dense Matter from a density dependent relativistic mean field model
• Constraining mean-field models of the nuclear matter equation of state at low densities
• Making a soft relativistic mean-field equation of state stiffer at high density
• The influence of inelastic neutrino reactions with light nuclei on the standing accretion shock instability in core-collapse supernovae
• Nuclear Statistical Equilibrium Equation of State for Core Collapse
• Light clusters and the pasta phase
• $\alpha$ particles and the pasta phase
• Light clusters in warm stellar matter: explicit mass shifts and universal cluster-meson couplings
• Description of light clusters in relativistic nuclear models
• Light Clusters and Pasta Phases in Warm and Dense Nuclear Matter
• Quantum statistical calculation of cluster abundances in hot dense matter

Cited by in corpus (20)

• Production of light nuclei at colliders -- coalescence vs. thermal model
• Light $p$-shell nuclei with cluster structures ($4\le A\le 16$) in nuclear matter
• Medium modifications for light and heavy nuclear clusters in simulations of core collapse supernovae -- Impact on equation of state and weak interactions
• Embedding short-range correlations in relativistic density functionals through quasi-deuterons
• Light clusters in dilute heavy-baryon admixed nuclear matter
• Improved method for the experimental determination of in-medium effects from heavy-ion collisions
• Experimental study of the isospin transport with 40,48 Ca+ 40,48 Ca reactions at 35 MeV/nucleon
• Light clusters in warm stellar matter: calibrating the cluster couplings
• Bose-Einstein condensate of alpha particles in the ground state of nuclear matter?
• Employing ternary fission of ${}^{242}$Pu as a probe of very neutron rich matter
• Cold dilute nuclear matter with $\alpha$-particle condensation in a generalized nonlinear relativistic mean-field model
• Statistical treatment of nuclear clusters in the continuum
• Influence of the tetraneutron on the EoS under core-collapse supernovae and heavy-ion collisions conditions
• Dynamics of dilute nuclear matter with light clusters and in-medium effects
• Phase-space excluded-volume approach for light clusters in nuclear medium
• Light clusters as a possible source of crustal impurities: a quasi-particle approach
• Medium effects on light clusters from heavy-ion collisions within a relativistic mean-field description
• Model independent reconstruction of impact parameter distributions for intermediate energy heavy ion collisions
• Light hyperclusters and hyperons in low-density hot stellar matter
• Heavy baryons in hot stellar matter with light nuclei and hypernuclei